/*
 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package org.graalvm.polyglot.tck;

import org.graalvm.polyglot.PolyglotException;

final class DefaultResultVerifier implements ResultVerifier {

    static final ResultVerifier INSTANCE = new DefaultResultVerifier();

    private DefaultResultVerifier() {
    }

    @Override
    public void accept(final SnippetRun snippetRun) throws PolyglotException {
        final PolyglotException exception = snippetRun.getException();
        if (exception != null) {
            throw exception;
        }
        final TypeDescriptor resultType = TypeDescriptor.forValue(snippetRun.getResult());
        final TypeDescriptor snippetReturnType = snippetRun.getSnippet().getReturnType();
        if (!snippetReturnType.isAssignable(resultType)) {
            throw new AssertionError(String.format(
                            "Result is out of type bounds. Expected: %s, Got: %s.",
                            snippetReturnType,
                            resultType));
        }
    }
}
